feat(platform-web): show vehicle analysis scope

vehicle-data-platform/apps/web/src/pages/Mileage.tsx

@@ -1,4 +1,4 @@
-import { Button, Card, Form, Select, Space, Table, Tag, Toast } from '@douyinfe/semi-ui';
+import { Button, Card, Form, Select, Space, Table, Tag, Toast, Typography } from '@douyinfe/semi-ui';
 import { useEffect, useState } from 'react';
 import { api } from '../api/client';
 import type { DailyMileageRow, MileageSummary } from '../api/types';
@@ -79,6 +79,11 @@ export function Mileage({ initialVin, initialProtocol, onOpenVehicle }: { initia
           </Button>
         )}
       />
+      <div className="vp-scope-bar">
+        <span className="vp-scope-label">当前车辆：{currentVehicleKeyword || '-'}</span>
+        <Tag color={currentProtocol ? 'blue' : 'green'}>当前来源：{currentProtocol || '全部来源'}</Tag>
+        <Typography.Text type="tertiary">里程统计按当前车辆与来源范围汇总。</Typography.Text>
+      </div>
       <Card bordered>
         <Form key={filters.keyword ?? ''} initValues={filters} layout="horizontal" onSubmit={(values) => {
           const nextFilters = values as Record<string, string>;